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Document compatible string for Exynos7870 DWC3-compatible USB 2.0 driver. The devicetree node requires three clocks, named "bus_early", "ref", and "ctrl". Unlike other variants, Exynos7870's USB controller requires a single 3.0V regulator. Assert that the other 1.0V regulator requirement is enforced on variants individually other than Exynos7870's. Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250301-exynos7870-usb-v3-1-f01697165d19@disroot.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
194 lines
4.0 KiB
YAML
194 lines
4.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/usb/samsung,exynos-dwc3.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung Exynos SoC USB 3.0 DWC3 Controller
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maintainers:
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- Krzysztof Kozlowski <krzk@kernel.org>
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properties:
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compatible:
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oneOf:
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- enum:
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- google,gs101-dwusb3
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- samsung,exynos5250-dwusb3
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- samsung,exynos5433-dwusb3
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- samsung,exynos7-dwusb3
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- samsung,exynos7870-dwusb3
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- samsung,exynos850-dwusb3
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- items:
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- const: samsung,exynos990-dwusb3
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- const: samsung,exynos850-dwusb3
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'#address-cells':
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const: 1
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clocks:
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minItems: 1
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maxItems: 4
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clock-names:
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minItems: 1
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maxItems: 4
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ranges: true
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'#size-cells':
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const: 1
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vdd10-supply:
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description: 1.0V power supply
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vdd33-supply:
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description: 3.0V/3.3V power supply
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patternProperties:
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"^usb@[0-9a-f]+$":
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$ref: snps,dwc3.yaml#
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description: Required child node
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required:
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- compatible
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- '#address-cells'
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- clocks
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- clock-names
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- ranges
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- '#size-cells'
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- vdd33-supply
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allOf:
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- if:
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properties:
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compatible:
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contains:
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const: google,gs101-dwusb3
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then:
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properties:
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clocks:
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minItems: 4
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maxItems: 4
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clock-names:
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items:
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- const: bus_early
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- const: susp_clk
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- const: link_aclk
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- const: link_pclk
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required:
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- vdd10-supply
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- if:
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properties:
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compatible:
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contains:
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const: samsung,exynos5250-dwusb3
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then:
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properties:
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clocks:
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minItems: 1
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maxItems: 1
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clock-names:
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items:
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- const: usbdrd30
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required:
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- vdd10-supply
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- if:
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properties:
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compatible:
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contains:
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const: samsung,exynos5433-dwusb3
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then:
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properties:
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clocks:
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minItems: 4
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maxItems: 4
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clock-names:
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items:
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- const: aclk
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- const: susp_clk
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- const: phyclk
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- const: pipe_pclk
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required:
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- vdd10-supply
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- if:
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properties:
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compatible:
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contains:
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const: samsung,exynos7-dwusb3
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then:
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properties:
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clocks:
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minItems: 3
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maxItems: 3
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clock-names:
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items:
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- const: usbdrd30
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- const: usbdrd30_susp_clk
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- const: usbdrd30_axius_clk
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required:
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- vdd10-supply
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- if:
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properties:
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compatible:
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contains:
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const: samsung,exynos7870-dwusb3
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then:
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properties:
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clocks:
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minItems: 3
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maxItems: 3
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clock-names:
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items:
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- const: bus_early
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- const: ref
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- const: ctrl
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- if:
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properties:
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compatible:
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contains:
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const: samsung,exynos850-dwusb3
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then:
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properties:
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clocks:
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minItems: 2
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maxItems: 2
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clock-names:
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items:
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- const: bus_early
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- const: ref
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required:
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- vdd10-supply
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/exynos5420.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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usb@12000000 {
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compatible = "samsung,exynos5250-dwusb3";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0x0 0x12000000 0x10000>;
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clocks = <&clock CLK_USBD300>;
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clock-names = "usbdrd30";
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vdd33-supply = <&ldo9_reg>;
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vdd10-supply = <&ldo11_reg>;
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usb@0 {
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compatible = "snps,dwc3";
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reg = <0x0 0x10000>;
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interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
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phys = <&usbdrd_phy0 0>, <&usbdrd_phy0 1>;
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phy-names = "usb2-phy", "usb3-phy";
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snps,dis_u3_susphy_quirk;
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};
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};
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